Display screen with an animated graphical user interface



FIG. 1 is a front view of a first image in the sequence of a display screen with an animated graphical user interface showing our new design;

FIG. 2 is a front view of a second image thereof;

FIG. 3 is a front view of a third image thereof;

FIG. 4 is a front view of a fourth image thereof; and,

FIG. 5 is a front view of a fifth image thereof.

The appearance of the image sequentially transitions between the images shown in FIGS. 1-5. The process or period in which an image transitions to another forms no part of the claimed design. The broken lines of even length are for environmental purposes only and forms no part of the claimed design. The broken lines of uneven length depicting the display screen or portion thereof form no part of the claimed design. 

CLAIM The ornamental design for a display screen with an animated graphical user interface, as shown and described. 